/*
 * Copyright 2013-2018 Ray Tsang
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jdeferred2;

/**
 * Allows a {@code DeferredFutureTask} to onCancel resources when its task is interrupted or cancelled.
 *
 * @author Ray Tsang
 * @author Andres Almiray
 * @author Stephan Classen
 * @since 2.0
 */
public interface CancellationHandler {
	/**
	 * Invoked when the owning task is interrupted or cancelled.
	 */
	void onCancel();
}